-10.39% is the change from 491 to 440
Calculation steps:
[( 440 - 491 ) ÷ 491] x 100 = -10.39%
Formula
Percentage change = [(440 - 491) / 491] x 100
Subtract the new number by the original number
440 - 491 = -51
-51 ÷ 491 = -0.10386965376782077
-0.10386965376782077 x 100 = -10.39%